31190908779

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{73}}^2\times {\mathrm{101}}^1\times {\mathrm{137}}^1$

素因数の和:437

約数の個数: 72

約数和(自身を含む): 47456839872

約数和(自身を除く): 16265931093

約数列:

[1, 3, 9, 47, 73, 101, 137, 141, 219, 303, 411, 423, 657, 909, 1233, 3431, 4747, 5329, 6439, 7373, 10001, 10293, 13837, 14241, 15987, 19317, 22119, 30003, 30879, 41511, 42723, 47961, 57951, 66357, 90009, 124533, 250463, 346531, 470047, 538229, 650339, 730073, 751389, 1010101, 1039593, 1410141, 1614687, 1951017, 2190219, 2254167, 3030303, 3118779, 4230423, 4844061, 5853051, 6570657, 9090909, 25296763, 34313431, 47474747, 73737373, 75890289, 102940293, 142424241, 221212119, 227670867, 308820879, 427272723, 663636357, 3465656531, 10396969593, 31190908779]

約数ペア:

[(1, 31190908779), (3, 10396969593), (9, 3465656531), (47, 663636357), (73, 427272723), (101, 308820879), (137, 227670867), (141, 221212119), (219, 142424241), (303, 102940293), (411, 75890289), (423, 73737373), (657, 47474747), (909, 34313431), (1233, 25296763), (3431, 9090909), (4747, 6570657), (5329, 5853051), (6439, 4844061), (7373, 4230423), (10001, 3118779), (10293, 3030303), (13837, 2254167), (14241, 2190219), (15987, 1951017), (19317, 1614687), (22119, 1410141), (30003, 1039593), (30879, 1010101), (41511, 751389), (42723, 730073), (47961, 650339), (57951, 538229), (66357, 470047), (90009, 346531), (124533, 250463)]